Sport shoe



SPORT SHOE Filed March 28, 1966 INVENTOR .Z'Z/je 77 Era/2 .97%

The present invention relates to a sport shoe and more particularly toan inside-track shoe which is provided with a sole consisting of aplastic material, preferably nylon, which is designed for securingspikes or the like thereto.

Similar sport shoes of this type which were known prior to thisinvention were provided with six spikes within the front part of thesole, and the supporting plates of these spikes were preferably embeddedwithin the plastic sole during the molding thereof. Especially forinside-track shoes it was previously regarded as necessary to providethe front part of the sole with at least six spikes so as to provide thesole which has otherwise a very smooth surface with a sufficient griptraction. Since the weight of a sport shoe is determined to aconsiderable extent by the number of spikes which are secured to theouter sole and since such shoes should be made of the lowest possibleweight, it would be of advantage if it was possible to reduce the numberof spikes.

It is therefore an object of the present invention to provide a sportshoe and more particularly an inside-track shoe which may be made of aconsiderably lighter weight than similar shoes as previously made byproviding the lower surface of the sole with a sufficient traction so asto permit the number of spikes to be reduced. This object is attainedaccording to the invention by providing the lower side of the plasticsole with a rough coating, preferably of crepe rubber or the like, andby making this coating of such a thickness that the tips of the spikesstill project from the coating. This rough coating provides the outersole with such a grip traction that the front part of the sole does notrequire more than four spikes. These four spikes are provided within thetoe and ball areas of the sole and they are preferably arranged so thateach pair of spikes is disposed within a line which extendssubstantially parallel to the ball connecting line.

The features and advantages of the invention will thecome more clearlyapparent from the following description which is to be read withreference to the accompanying drawings, in which 3,324,578 Patented June13, 1967 FIGURE 1 shows a top view of a half sole according to theinvention which is intended for the front part of a sport shoe; whileFIGURE 2 shows a cross section which is taken along the line II-II ofFIGURE 1.

As illustrated in the drawings, the plastic sole 1 which may consist,for example, of nylon is substantially cupshaped and the supportingplates 3 of the spikes 2 together with the adjacent parts of the latterare embedded within the sole 1. The lower side of sole 1 is providedwith a rough coating 4-, preferably of crepe rubber or the like, fromwhich the tips of the spikes 2 project for a short distance. The sole asillustrated in FIGURE 1 is only provided with four spikes within thefront part thereof which are distributed over the toe and ball areas ofthe sole so that each pair of spikes is disposed within a line whichextends substantially parallel to the ball connecting line.

Although my invention has been illustrated and described with referenceto the preferred embodiment thereof, I wish to have it understood thatit is in no way limited to the details of such embodiment but is capableof numerous modifications within the scope of the appended claims.

Having thus fully disclosed my invention, what I claim 1. A sport shoehaving a sole consisting of a plastic inner member, a plurality ofindividual spikes embedded in said sole in spaced relation, each of saidspikes having a generally fiat upper portion and a downwardly extendingshaft portion, said sole surrounding the fiat portion of said spikes,and a rough traction coating secured to the lower side of said sole andhaving such a thickness that the tips of the shaft portion of each saidspikes projects downwardly from said coating.

2. A sport shoe as defined in claim 1, in which said rough coatingconsists of crepe rubber.

3. A sport shoe as defined in claim 1, in which said spikes are embeddedin said plastic sole when the latter is molded.

References Cited UNITED STATES PATENTS 1,318,593 10/1919 Randall 36592,284,930 6/1942 Stoker 36-30 2,350,852 6/1944 Wehr 36-30 3,156,98711/1964 Dassler 36-2.5 3,170,251 2/1965 Patrick 36-59 PATRICK D. LAWSON,Primary Examiner.

1. A SPORT SHOE HAVING A SOLE CONSISTING OF A PLASTIC INNER MEMBER, APLURALITY OF INDIVIDUAL SPIKES EMBEDDED IN SAID SOLE IN SPACED RELATION,EACH OF SAID SPIKES HAVING A GENERALLY FLAT UPPER PORTION AND ADOWNWARDLY EXTENDING SHAFT PORTION, SAID SOLE SURROUNDING THE FLATPORTION OF SAID SPIKES, AND A ROUGH TRACTION COATING SECURED TO THELOWER SIDE OF SAID SOLE AND HAVING SUCH A THICKNESS THAT THE TIPS OF THESHAFT PORTION OF EACH SAID SPIKES PROJECTS DOWNWARDLY FROM SAID COATING.